Beef, since cattle are the main product of my region. The native Americans ate bison

For dental health the best is no carbohydrates, few acids

Human skeletons don’t show dental damage until the rise of agriculture, especially bread

I note that allergies prevent me from adding vegetables - I can’t be healthy if I eat tannins or oxalates, many others can tolerate both of those

Touching a control for enough heat to cook dinner versus setting a fire

It’s possible to have great tech without the spying, but it takes a lot of understanding of and ability with computer technology

We have pretty good batteries. I have modelled solar on my house (based on records of the 2011 solar array I have), with 15kW of solar panels and many loads (especially HVAC, water heating, car charging) being done in daylight hours I would only need about 10kWh of battery, but 30kWh would be better for a bit of really bad weather tolerance

The main job of a battery is to provide power between dusk and dawn and to buffer power spikes (like air con starting up) from the solar power, and batteries are well up to doing that

For reference my normal night time power usage is 6kWh in winter, less when the days are longer

Lithium iron phosphate (LiFePO4) batteries are safe and aren’t degraded by being charged and discharged daily. Near future battery technologies are less high performing, but are non polluting

The ancient Greeks remembered their hunter gatherer tribal ancestors as living in a golden age, when everyone was equal and the gods walked among men

I went to eating like the great plains American first people about 2 years ago and haven’t brushed my teeth since

About three months ago I had a dentist clean the plaques off my teeth and check them, to ensure I wasn’t too misguided and my teeth had no new damage

The ancient people with great teeth also had bigger heads and bigger jaws. They could fit wisdom teeth